CMakeLists.txt

cmake_minimum_required( VERSION 3.16 )

if( COMMAND cmake_policy )
	if( POLICY CMP0011 )
		cmake_policy( SET CMP0011 NEW )
	endif()
	if( POLICY CMP0054 )
		cmake_policy( SET CMP0054 NEW )
	endif()
	if ( POLICY CMP0067 )
		cmake_policy( SET CMP0067 NEW )
	endif()
	if ( POLICY CMP0057 )
		cmake_policy( SET CMP0057 NEW )
	endif()
	if ( POLICY CMP0091 )
		cmake_policy( SET CMP0091 NEW )
		set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
	endif()
endif()

if (CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
	message("Setting Dynamic C/CXX linking")
	set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>DLL")
	message("Using vcpkg on WindowsStore")
	# Force static MD triplet on WindowsStore
	set(VCPKG_TARGET_TRIPLET "x64-uwp-static-md" CACHE STRING "" FORCE)
	list(APPEND VCPKG_MANIFEST_FEATURES "vcpkg-libwebp")
	set(LIBVPX_VCPKG ON CACHE BOOL "Using vcpkg's LIBVPX" FORCE)
	set(OPENAL_SOFT_VCPKG ON CACHE BOOL "Using vcpkg's OPENAL" FORCE)
	set(HAVE_VULKAN OFF CACHE BOOL "Enable Vulkan support" FORCE)
	set(HAVE_GLES2 OFF CACHE BOOL "Enable GLES2 support" FORCE)
	set( HAVE_VM_JIT OFF )
	set(VCPKG_OVERLAY_PORTS "${CMAKE_CURRENT_LIST_DIR}/vcpkg_fix" CACHE STRING "" FORCE)
	message("Using vcpkg overlay ${VCPKG_OVERLAY_PORTS}")
elseif (CMAKE_SYSTEM_NAME STREQUAL "Windows" OR (NOT CMAKE_SYSTEM_NAME AND CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows"))
	# Force static triplet on Windows
	set(VCPKG_TARGET_TRIPLET "x64-windows-static")
endif()

if (LIBVPX_VCPKG)
	list(APPEND VCPKG_MANIFEST_FEATURES "vcpkg-libvpx")
endif()

if (OPENAL_SOFT_VCPKG)
	list(APPEND VCPKG_MANIFEST_FEATURES "vcpkg-openal-soft")
endif()

project(Raze)

if (WIN32 AND VCPKG_TOOLCHAIN)
	option(LIBVPX_VCPKG "Use libvpx from vcpkg" OFF)
endif()

if (VCPKG_TOOLCHAIN)
	option(OPENAL_SOFT_VCPKG "Use OpenAL from vcpkg" OFF)
endif()

if (NOT VCPKG_TOOLCHAIN)
	set(VCPKG_MANIFEST_FEATURES)
endif()



set ( PROJECT_NAME "raze")

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)


list( APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake )
include( FindPackageHandleStandardArgs )

# Support cross compiling
option( FORCE_CROSSCOMPILE "Turn on cross compiling." NO )
if( FORCE_CROSSCOMPILE )
	set( CMAKE_CROSSCOMPILING TRUE )
endif()

if(CMAKE_CROSSCOMPILING)
	set(IMPORT_EXECUTABLES "IMPORTFILE-NOTFOUND" CACHE FILEPATH "Export file from native build.")
	include(${IMPORT_EXECUTABLES})
endif()

# Recursive function to place PK3 archive source files into a hierarchy of source file in the IDE
function( assort_pk3_source_folder FOLDER_NAME PK3_DIR )
	# Assort source files into folders in the IDE
	file(GLOB PK3_SRCS ${PK3_DIR}/*) # Create list of all files in this folder
	foreach(PK3_SRC ${PK3_SRCS})
		# If there are subfolders, recurse into them
		if(IS_DIRECTORY ${PK3_SRC})
			get_filename_component(DIRNAME ${PK3_SRC} NAME)
			# Exclude folder from list of source files
			list(REMOVE_ITEM PK3_SRCS ${PK3_SRC})
			# Recurse deeper into the filesystem folder tree
			assort_pk3_source_folder( ${FOLDER_NAME}\\${DIRNAME} ${PK3_SRC} )
		endif()
		# Assign IDE group for current top-level source files
		source_group(${FOLDER_NAME} FILES ${PK3_SRCS})
	endforeach()
endfunction()

option( PK3_QUIET_ZIPDIR "Do not list files processed by zipdir" NO )
if( PK3_QUIET_ZIPDIR )
	set( PK3_ZIPDIR_OPTIONS "-q" )
endif()

# Simplify pk3 building, add_pk3(filename srcdirectory)
function( add_pk3 PK3_NAME PK3_DIR )
	# Generate target name. Just use "pk3" for main pk3 target.
	string( REPLACE "." "_" PK3_TARGET ${PK3_NAME} )

	if( NOT COMPILE_OUTPUT_OLDSTYLE )
		add_custom_command( OUTPUT ${COMPILE_OUTPUT_DIRECTORY}/${PK3_NAME}
			COMMAND zipdir -udf ${PK3_ZIPDIR_OPTIONS} ${COMPILE_OUTPUT_DIRECTORY}/${PK3_NAME} ${PK3_DIR}
			COMMAND ${CMAKE_COMMAND} -E copy_if_different ${COMPILE_OUTPUT_DIRECTORY}/${PK3_NAME} $<TARGET_FILE_DIR:${PROJECT_NAME}>/${PK3_NAME}
			DEPENDS zipdir )
	else()
		add_custom_command( OUTPUT ${COMPILE_OUTPUT_DIRECTORY}/${PK3_NAME}
			COMMAND zipdir -udf ${PK3_ZIPDIR_OPTIONS} ${COMPILE_OUTPUT_DIRECTORY}/${PK3_NAME} ${PK3_DIR}
			DEPENDS zipdir )
	endif()
	# Create a list of source files for this PK3, for use in the IDE
	# Phase 1: Create a list of all source files for this PK3 archive, except
	#  for a couple of strife image file names that confuse CMake.
	file(GLOB_RECURSE PK3_SRCS ${PK3_DIR}/*)
	# Exclude from the source list some files with brackets in the
	# file names here, because they confuse CMake.
	# This only affects the list of source files shown in the IDE.
	# It does not actually remove the files from the PK3 archive.
	# First replace that toxic bracket character with something we can handle
	string(REPLACE "[" confusing_bracket PK3_SRCS "${PK3_SRCS}")
	string(REPLACE "]" confusing_bracket PK3_SRCS "${PK3_SRCS}")
	foreach(PK3_SRC ${PK3_SRCS}) # All source files at all levels
		# Exclude those quarantined source file source file names that once had a bracket
		if(${PK3_SRC} MATCHES confusing_bracket)
			# message(STATUS "Ignoring PK3 file name containing brackets "${PK3_SRC})
			list(REMOVE_ITEM PK3_SRCS ${PK3_SRC})
		endif()
	endforeach()
	# Phase 2: Create the PK3 build rule, including the source file list for the IDE
	# Touch the zipdir executable here so that the pk3s are forced to
	# rebuild each time since their dependency has "changed."
	add_custom_target( ${PK3_TARGET} ALL
		COMMAND ${CMAKE_COMMAND} -E touch $<TARGET_FILE:zipdir>
		DEPENDS ${COMPILE_OUTPUT_DIRECTORY}/${PK3_NAME}
		SOURCES ${PK3_SRCS})
	# Phase 3: Assign source files to a nice folder structure in the IDE
	assort_pk3_source_folder("Source Files" ${PK3_DIR})
	# Phase 4: Add the resulting PK3 to the install target.
	if( WIN32 )
		set( INSTALL_PK3_PATH . CACHE STRING "Directory where engine data will be placed during install." )
	else()
		set( INSTALL_PK3_PATH ${CMAKE_INSTALL_DATAROOTDIR}/${PROJECT_NAME} CACHE STRING "Directory where engine data will be placed during install." )
	endif()
	install(FILES "${PROJECT_BINARY_DIR}/${PK3_NAME}"
			DESTINATION ${INSTALL_PK3_PATH}
			COMPONENT "Game resources")
endfunction()

# Macro for building libraries without debugging information
macro( make_release_only )
	set( CMAKE_C_FLAGS_MINSIZEREL ${CMAKE_C_FLAGS_RELEASE} )
	set( CMAKE_C_FLAGS_RELWITHDEBINFO ${CMAKE_C_FLAGS_RELEASE} )
	string( REPLACE "/MT " "/MTd " CMAKE_C_FLAGS_DEBUG ${CMAKE_C_FLAGS_RELEASE} )
	set( CMAKE_CXX_FLAGS_MINSIZEREL ${CMAKE_CXX_FLAGS_RELEASE} )
	set( CMAKE_CXX_FLAGS_RELWITHDEBINFO ${CMAKE_CXX_FLAGS_RELEASE} )
	string( REPLACE "/MT " "/MTd " CMAKE_CXX_FLAGS_DEBUG ${CMAKE_CXX_FLAGS_RELEASE} )
endmacro()

IF( NOT CMAKE_BUILD_TYPE )
	SET( CMAKE_BUILD_TYPE Debug CACHE STRING
		"Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel."
		FORCE )
ENDIF()

set( COMPILE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR} CACHE PATH "Directory where engine data and the executable will be created." )
set( COMPILE_EXE_NAME ${PROJECT_NAME} CACHE FILEPATH "Name of the executable to create" )
if( MSVC )
	# Allow the user to use COMPILE_OUTPUT_DIRECTORY as a single release point.
	# Use different names for the various compile targets.
	option( COMPILE_OUTPUT_OLDSTYLE "Don't use Release/Debug directories." OFF )
else()
	set( COMPILE_OUTPUT_OLDSTYLE OFF )
endif()

# Replacement variables for a possible long list of C/C++ compilers compatible with GCC
if( "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_C_COMPILER_ID}" MATCHES "Clang" )
	set( DEM_CMAKE_COMPILER_IS_GNUC_COMPATIBLE TRUE )
else()
	set( DEM_CMAKE_COMPILER_IS_GNUC_COMPATIBLE FALSE )
endif()

if( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
	set( DEM_CMAKE_COMPILER_IS_GNUCXX_COMPATIBLE TRUE )
else()
	set( DEM_CMAKE_COMPILER_IS_GNUCXX_COMPATIBLE FALSE )
endif()

if( DEM_CMAKE_COMPILER_IS_GNUCXX_COMPATIBLE )
	set( PROFILE 0 CACHE BOOL "Enable profiling with gprof for Debug and RelWithDebInfo build types." )

	if( CMAKE_CXX_STANDARD )
		# By default, try_compile() invocations ignore CXX_STANDARD value
		# CMake 3.8 and newer have CMP0067 policy that fixes the issue, but it should be enabled explicitly
		# Older versions require manual specification of the corresponding command line option
		set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++${CMAKE_CXX_STANDARD}" )
	endif()
endif()

# Fast math flags, required by some subprojects
set( ZD_FASTMATH_FLAG "" )
if( DEM_CMAKE_COMPILER_IS_GNUCXX_COMPATIBLE )
	set( ZD_FASTMATH_FLAG "-ffast-math -ffp-contract=fast" )
elseif( MSVC )
	set( ZD_FASTMATH_FLAG "/fp:fast" )
endif()

macro( use_fast_math )
	set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ZD_FASTMATH_FLAG}" )
	set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ZD_FASTMATH_FLAG}" )
endmacro() 
macro( require_stricmp )
	CHECK_FUNCTION_EXISTS( stricmp STRICMP_EXISTS )
	if( NOT STRICMP_EXISTS )
		add_definitions( -Dstricmp=strcasecmp )
	endif()
endmacro()

macro( require_strnicmp )
	CHECK_FUNCTION_EXISTS( strnicmp STRNICMP_EXISTS )
	if( NOT STRNICMP_EXISTS )
		add_definitions( -Dstrnicmp=strncasecmp )
	endif()
endmacro()

option( NO_OPENAL "Disable OpenAL sound support" OFF )

find_package( BZip2 )
find_package( VPX )
find_package( WebP )
if (NOT WebP_FOUND)
	include(FindPkgConfig)
	pkg_check_modules(libwebp IMPORTED_TARGET libwebp)
	if (NOT TARGET PkgConfig::libwebp)
		message(SEND_ERROR "libwebp not found")
	endif()
	pkg_check_modules(libwebpmux REQUIRED IMPORTED_TARGET libwebpmux)
	pkg_check_modules(libwebpdemux REQUIRED IMPORTED_TARGET libwebpdemux)

	add_library(WebP::webp ALIAS PkgConfig::libwebp)
	add_library(WebP::webpdemux ALIAS PkgConfig::libwebpdemux)
	add_library(WebP::libwebpmux ALIAS PkgConfig::libwebpmux)
endif()

if (CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
	find_package( SDL2 REQUIRED )
endif()


include( TargetArch )

target_architecture(TARGET_ARCHITECTURE)

if( ${TARGET_ARCHITECTURE} MATCHES "x86_64" AND NOT CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
	set( HAVE_VM_JIT ON )
endif()

option (HAVE_VULKAN "Enable Vulkan support" ON)
option (HAVE_GLES2 "Enable GLES2 support" ON)

# no, we're not using external asmjit for now, we made too many modifications to our's.
# if the asmjit author uses our changes then we'll update this.

#if( ${HAVE_VM_JIT} )
#	find_package( asmjit )
#endif()

if( MSVC )
	# Eliminate unreferenced functions and data
	# Perform identical COMDAT folding
	set( REL_LINKER_FLAGS "/opt:ref /opt:icf /nodefaultlib:msvcrt /TSAWARE /LARGEADDRESSAWARE /SAFESEH:NO" )

	# String pooling
	# Function-level linking
	# Disable run-time type information
	set( ALL_C_FLAGS "/GF /Gy /permissive- /utf-8" )

	if ( HAVE_VULKAN )
		set( ALL_C_FLAGS "${ALL_C_FLAGS} /DHAVE_VULKAN" )
	endif()

	if ( HAVE_GLES2 )
		set( ALL_C_FLAGS "${ALL_C_FLAGS} /DHAVE_GLES2" )
	endif()

	# Use SSE 2 as minimum always as the true color drawers needs it for __vectorcall
	#set( ALL_C_FLAGS "${ALL_C_FLAGS} /arch:SSE2") # This is already the default



	# Avoid CRT DLL dependancies in release builds, optionally generate assembly output for checking crash locations.
	option( COMPILE_GENERATE_ASM "Generate assembly output." OFF )
	if( COMPILE_GENERATE_ASM )
		set( REL_C_FLAGS "/MT /Oy /Oi /FAcs /GS-" )
	else()
		set( REL_C_FLAGS "/MT /Oy /Oi /GS-" )
	endif()


	# Debug allocations in debug builds
	set( DEB_C_FLAGS "/D _CRTDBG_MAP_ALLOC /MTd" )

	# Disable warnings for unsecure CRT functions from VC8+
	set( ALL_C_FLAGS "${ALL_C_FLAGS} /DUNICODE /D_UNICODE /D_WIN32_WINNT=0x0600 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_SECURE_NO_WARNINGS /D_CRT_NONSTDC_NO_WARNINGS" )

	# These must be silenced because the code is full of them. Expect some of undefined behavior hidden in this mess. :(
	#set( ALL_C_FLAGS "${ALL_C_FLAGS} /wd4244 /wd4018 /wd4267" )

	# annoying intellisense warnings that are virtually always false positives and mostly happen in third party code.
	#6297: overflow when shifting
	#6386: Buffer overrun when writing (i.e. missing range check for array writes)
	#6385: Reading invalid data (i.e. missing range check for array reads)
	#6308: missing null check on realloc
	set( ALL_C_FLAGS "${ALL_C_FLAGS} /wd6297 /wd6386 /wd6385 /wd6308" ) 


	# Most of these need to be cleaned out. The source is currently infested with far too much conditional compilation which is a constant source of problems.
	set( ALL_C_FLAGS "${ALL_C_FLAGS} /DUSE_OPENGL=1 /DNOASM=1 /DWIN32" )

	# The CMake configurations set /GR and /MD by default, which conflict with our settings.
	string(REPLACE "/MD " " " CMAKE_CXX_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELEASE} )
	string(REPLACE "/MD " " " CMAKE_CXX_FLAGS_MINSIZEREL ${CMAKE_CXX_FLAGS_MINSIZEREL} )
	string(REPLACE "/MD " " " CMAKE_CXX_FLAGS_RELWITHDEBINFO ${CMAKE_CXX_FLAGS_RELWITHDEBINFO} )
	string(REPLACE "/Ob1 " "/Ob2 " CMAKE_CXX_FLAGS_RELWITHDEBINFO ${CMAKE_CXX_FLAGS_RELWITHDEBINFO} )
	string(REPLACE "/MDd " " " CMAKE_CXX_FLAGS_DEBUG ${CMAKE_CXX_FLAGS_DEBUG} )
	string(REPLACE "/MD " " " CMAKE_C_FLAGS_RELEASE ${CMAKE_C_FLAGS_RELEASE} )
	string(REPLACE "/MD " " " CMAKE_C_FLAGS_MINSIZEREL ${CMAKE_C_FLAGS_MINSIZEREL} )
	string(REPLACE "/MD " " " CMAKE_C_FLAGS_RELWITHDEBINFO ${CMAKE_C_FLAGS_RELWITHDEBINFO} )
	string(REPLACE "/MDd " " " CMAKE_C_FLAGS_DEBUG ${CMAKE_C_FLAGS_DEBUG} )
	string(REPLACE " /GR" " " CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} )
else()
	set( REL_LINKER_FLAGS "" )
	set( ALL_C_FLAGS "-ffp-contract=off -DUSE_OPENGL=1 -DNOASM=1" )

	if ( HAVE_VULKAN )
		set( ALL_C_FLAGS "${ALL_C_FLAGS} -DHAVE_VULKAN" )
	endif()

	if ( HAVE_GLES2 )
		set( ALL_C_FLAGS "${ALL_C_FLAGS} -DHAVE_GLES2" )
	endif()

	if ( UNIX )
		include(CheckSymbolExists)
		check_symbol_exists( "fts_set" "fts.h" HAVE_FTS )
		if ( NOT HAVE_FTS )
			include ( FindPkgConfig )
			pkg_check_modules( MUSL_FTS musl-fts )
			if ( MUSL_FTS_FOUND )
				set ( ALL_C_FLAGS "${ALL_C_FLAGS} ${MUSL_FTS_LDFLAGS}" )
			else ( MUSL_FTS_FOUND )
				message (ERROR "fts_* functions not found in the system" )
			endif ( MUSL_FTS_FOUND )
		endif ( NOT HAVE_FTS )
	endif ( UNIX )

	set( REL_C_FLAGS "" )
	set( DEB_C_FLAGS "" )


	if( APPLE )
		set(CMAKE_OSX_DEPLOYMENT_TARGET "10.13")
		if( CMAKE_CXX_COMPILER_ID STREQUAL "GNU" )
			# If we're compiling with a custom GCC on the Mac (which we know since g++-4.2 doesn't support C++11) statically link libgcc.
			set( ALL_C_FLAGS "-static-libgcc" )
		endif()
	elseif( NOT MINGW )
		# Generic GCC/Clang requires position independent executable to be enabled explicitly
		set( ALL_C_FLAGS "${ALL_C_FLAGS} -fPIE" )
		set( CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pie" )
	endif( APPLE )
endif()

set( CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} ${REL_LINKER_FLAGS}" )
set( CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL} ${REL_LINKER_FLAGS}" )
set( CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO} ${REL_LINKER_FLAGS}" )

set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ALL_C_FLAGS}" )
set( CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} ${REL_C_FLAGS}" )
set( CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} ${REL_C_FLAGS}" )
set( CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} ${REL_C_FLAGS}" )
set( CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${DEB_C_FLAGS} -D_DEBUG" )

set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ALL_C_FLAGS}" )
set( CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${REL_C_FLAGS}" )
set( CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} ${REL_C_FLAGS}" )
set( CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} ${REL_C_FLAGS}" )
set( CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${DEB_C_FLAGS} -D_DEBUG" )

option(FORCE_INTERNAL_BZIP2 "Use internal bzip2")
option(FORCE_INTERNAL_ASMJIT "Use internal asmjit" ON)
mark_as_advanced( FORCE_INTERNAL_ASMJIT )

if (HAVE_VULKAN)
	add_subdirectory( libraries/ZVulkan )
endif()

add_subdirectory( libraries/ZWidget )

if (NOT CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
	add_subdirectory( libraries/discordrpc EXCLUDE_FROM_ALL )
	set( DRPC_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/libraries/discordrpc/include" )
	set( DRPC_LIBRARIES discord-rpc )
	set( DRPC_LIBRARY discord-rpc )
endif()

if( HAVE_VM_JIT AND UNIX )
	check_symbol_exists( "backtrace" "execinfo.h" HAVE_BACKTRACE )
	if( NOT HAVE_BACKTRACE )
		set( CMAKE_REQUIRED_FLAGS "-lexecinfo" )
		check_symbol_exists( "backtrace" "execinfo.h" HAVE_LIBEXECINFO )
		if( HAVE_LIBEXECINFO )
			set( ALL_C_FLAGS "${ALL_C_FLAGS} -lexecinfo" )
		else( HAVE_LIBEXECINFO )
			set( HAVE_VM_JIT NO )
		endif( HAVE_LIBEXECINFO )
		set( CMAKE_REQUIRED_FLAGS )
	endif( NOT HAVE_BACKTRACE )
endif( HAVE_VM_JIT AND UNIX )

if( ${HAVE_VM_JIT} )
	if( ASMJIT_FOUND AND NOT FORCE_INTERNAL_ASMJIT )
		message( STATUS "Using system asmjit, includes found at ${ASMJIT_INCLUDE_DIR}" )
	else()
		message( STATUS "Using internal asmjit" )
		set( SKIP_INSTALL_ALL TRUE ) # Avoid installing asmjit alongside zdoom
		add_subdirectory( libraries/asmjit )
		set( ASMJIT_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/libraries/asmjit )
		set( ASMJIT_LIBRARIES asmjit )
		set( ASMJIT_LIBRARY asmjit )
	endif()
endif()
add_subdirectory( libraries/libtess )
set( TESS_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/libraries/libtess/Include )
set( TESS_LIBRARIES tess2 )
set( TESS_LIBRARY tess2 )


if( BZIP2_FOUND AND NOT FORCE_INTERNAL_BZIP2 )
	message( STATUS "Using system bzip2 library, includes found at ${BZIP2_INCLUDE_DIR}" )
else()
	message( STATUS "Using internal bzip2 library" )
	add_subdirectory( libraries/bzip2 )
	set( BZIP2_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/libraries/bzip2" )
	set( BZIP2_LIBRARIES bz2 )
	set( BZIP2_LIBRARY bz2 )
endif()

set( LZMA_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/libraries/lzma/C" )

if( NOT CMAKE_CROSSCOMPILING )
	if( NOT CROSS_EXPORTS )
		set( CROSS_EXPORTS "" )
	endif()
endif()

# Install the entire docs directory in the distributed zip package
#if( WIN32 )
#	set( INSTALL_DOCS_PATH docs CACHE STRING "Directory where the documentation will be placed during install." )
#else()
#	set( INSTALL_DOCS_PATH share/doc/${COMPILE_EXE_NAME} CACHE STRING "Directory where the documentation will be placed during install." )
#endif()
#install(DIRECTORY docs/
#		DESTINATION ${INSTALL_DOCS_PATH}
#		COMPONENT "Documentation")

add_subdirectory( libraries/lzma )
add_subdirectory( libraries/miniz )
add_subdirectory( tools )
add_subdirectory( wadsrc )
add_subdirectory( source )

if( NOT CMAKE_CROSSCOMPILING )
	export(TARGETS ${CROSS_EXPORTS} FILE "${CMAKE_BINARY_DIR}/ImportExecutables.cmake" )
endif()